HOSE AS 9W2012 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     9U-7349     Valve Guide Driver     1    Start By:
Remove the inlet and exhaust valves. Refer to Disassembly and Assembly, "Inlet and Exhaust Valves - Remove and Install".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g00490787
Use Tool (A) to remove the inlet and exhaust valve guides from the cylinder head.
Repeat Step 1 for the remaining inlet and exhaust valve guides.Installation Procedure
Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
A     9U-7349     Valve Guide Driver     1    
B     9U-6954     Valve Guide Collar     1    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 2 g00490790
Put clean engine oil on the outside diameter of the valve guide. Install the valve guide with Tool (A) and Tool (B), as shown.
Illustration 3 g00508601
Dimension (X) from the top of the valve guide to the cylinder head must be 22.23 0.25 mm (0.875 0.010 inch). For more information on the inlet and exhaust valve guides, refer to Specifications, "Cylinder Head Valves".Note: In order to help prevent damage to the valve guides, Tool (B) must be used during installation.
Repeat Steps 1 and 2 for the remaining inlet and exhaust valve guides.End By: Install the inlet and exhaust valves. Refer to Disassembly and Assembly, "Inlet and Exhaust Valves - Remove and Install".